1976696986 has 16 divisors (see below), whose sum is σ = 3240221760. Its totient is φ = 896935680.

The previous prime is 1976696983. The next prime is 1976697007. The reversal of 1976696986 is 6896966791.

It is a super-2 number, since 2×1976696986² = 7814661948922968392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1976696983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65166 + ... + 90553.

It is an arithmetic number, because the mean of its divisors is an integer number (202513860).

Almost surely, 2^1976696986 is an apocalyptic number.

1976696986 is a deficient number, since it is larger than the sum of its proper divisors (1263524774).

1976696986 is a wasteful number, since it uses less digits than its factorization.

1976696986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156309.

The product of its digits is 52907904, while the sum is 67.

The square root of 1976696986 is about 44460.0605712588. The cubic root of 1976696986 is about 1255.0085947253.

The spelling of 1976696986 in words is "one billion, nine hundred seventy-six million, six hundred ninety-six thousand, nine hundred eighty-six".